BOUDRY, Switzerland--(BUSINESS WIRE)--Celgene International Sàrl (NASDAQ: CELG) reported two REVLIMID (lenalidomide) Phase II studies, presented today at the 50th American Society of Hematology Meeting, both demonstrated high response rates and manageable side effects in patients previously untreated with symptomatic chronic lymphocytic leukemia (CLL). The studies demonstrated greater than 90 percent disease control across all evaluable patients.